A smart and portable micropump for stable liquid delivery

Computational fluid dynamic techniques were used to analyze the gas flow behavior of a typical atomization configuration. The calculated results are summarized as follows. The atomization gas flow at the atomizer's exit may be either subsonic at ambient pressure or sonic at an underexpanded condition, depending on the magnitude of the inlet gas pressure. When the atomization gas separates to become a free annular gas jet, a closed recirculating vortex region is formed between the liquid delivery tube and the annular jet's inner boundary. Upon entering the atomization chamber, an underexpanded sonic gas flow is further accelerated to supersonic velocity during expansion. This pressure adjustment establishes itself in repetitive expansion and compression waves. A certain protrusion of the liquid delivery tube is crucial to obtain a stable subatmospheric pressure region at its exit. The vortex flow under the liquid delivery tube tends to transport liquid metal to the high kinetic energy gas located outside the liquid delivery tube, thereby leading to an efficient atomization.

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Mocvd of Polycrystalline and Epitaxial Complex Oxides by Liquid Delivery

MRS Proceedings ◽

10.1557/proc-474-21 ◽

1997 ◽

Vol 474 ◽

Cited By ~ 3

Author(s):

J. F. Roeder ◽

S. M. Bilodeau ◽

R. J. Carl ◽

T. H. Baum ◽

P. C. Van Buskirk ◽

...

Keyword(s):

Single Crystal ◽

Current Density ◽

Complex Oxides ◽

The Other ◽

Charge Storage ◽

Growth Mechanisms ◽

X Ray ◽

Unique Approach ◽

Bst Films ◽

Liquid Delivery

ABSTRACTA unique approach to MOCVD of complex oxides enables deposition of a number of materials of technological importance through the use of liquid delivery of metalorganic precursors. Methodologies for control of composition and exploration of. process space are compared for two film systems, one in a relatively mature state of development ((Ba,Sr)Ti03), the other in an early state of development (Ni-ferrite). In both cases, composition was controlled by mixing metalorganic precursors dissolved in solvents using a liquid delivery system. Films with excellent crystalline quality were deposited in both cases. Polycrystalline BST films displayed properties suitable for DRAM applications: charge storage densities > 80 fF/μm2 and leakage current density < 10−8 A/cm2 for films as thin as 15 nm. Growth mechanisms and rates were determined for the single component oxides of the ferrite films. Epitaxial NiFe204 films were deposited on MgO single crystal substrates at 650°C; x-ray rocking curves yielded FWHM values of 0.046°, commensurate with the substrate.

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Study of the absence of recondensation with low liquid delivery rates by using a cavity sheathing gas in inductively coupled plasma-atomic emission spectrometry

Journal of Analytical Atomic Spectrometry ◽

10.1039/b618487a ◽

2007 ◽

Vol 22 (5) ◽

pp. 523 ◽

Cited By ~ 12

Author(s):

Cristina Lagomarsino ◽

Marco Grotti ◽

Jos? Luis Todol? ◽

Jean Michel Mermet

Keyword(s):

Inductively Coupled Plasma ◽

Atomic Emission ◽

Atomic Emission Spectrometry ◽

Emission Spectrometry ◽

Plasma Atomic Emission ◽

Plasma Atomic Emission Spectrometry ◽

Inductively Coupled ◽

Liquid Delivery

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Autonomous atmospheric water seeping MOF matrix

Science Advances ◽

10.1126/sciadv.abc8605 ◽

2020 ◽

Vol 6 (42) ◽

pp. eabc8605

Author(s):

G. Yilmaz ◽

F. L. Meng ◽

W. Lu ◽

J. Abed ◽

C. K. N. Peh ◽

...

Keyword(s):

Fresh Water ◽

Metal Organic Framework ◽

Sorption Kinetics ◽

Solar Irradiation ◽

Atmospheric Water ◽

Polymer Metal ◽

Metal Organic ◽

Delivery Efficiency ◽

Organic Framework ◽

Liquid Delivery

The atmosphere contains an abundance of fresh water, but this resource has yet to be harvested efficiently. To date, passive atmospheric water sorbents have required a desorption step that relies on steady solar irradiation. Since the availability and intensity of solar radiation vary, these limit on-demand desorption and hence the amount of harvestable water. Here, we report a polymer–metal-organic framework that provides simultaneous and uninterrupted sorption and release of atmospheric water. The adaptable nature of the hydro-active polymer, and its hybridization with a metal-organic framework, enables enhanced sorption kinetics, water uptake, and spontaneous water oozing. We demonstrate continuous water delivery for 1440 hours, producing 6 g of fresh water per gram of sorbent at 90% relative humidity (RH) per day without active condensation. This leads to a total liquid delivery efficiency of 95% and an autonomous liquid delivery efficiency of 71%, the record among reported atmospheric water harvesters.

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CHARACTERISATION OF FERROELECTRIC PbZrXTi1-XO3 (PZT) THIN FILMS PREPARED BY LIQUID-DELIVERY METALORGANIC CHEMICAL VAPOR DEPOSITION

Integrated Ferroelectrics ◽

10.1080/10584580600663748 ◽

2006 ◽

Vol 81 (1) ◽

pp. 289-295 ◽

Cited By ~ 1

Author(s):

S. MATICHYN ◽

M. LISKER ◽

M. SILINSKAS ◽

B. GARKE ◽

E. BURTE

Keyword(s):

Thin Films ◽

Chemical Vapor Deposition ◽

Vapor Deposition ◽

Metalorganic Chemical Vapor Deposition ◽

Chemical Vapor ◽

Pzt Thin Films ◽

Metalorganic Chemical ◽

Liquid Delivery

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Low-temperature Crystallization of SrBi2Ta2O9 Thin Filmswith Bi2O3 Interfacial Layers by Liquid-delivery Metalorganicchemical Vapor Deposition

Journal of Materials Research ◽

10.1557/jmr.2002.0006 ◽

2002 ◽

Vol 17 (1) ◽

pp. 26-30 ◽

Cited By ~ 5

Author(s):

Woong-Chul Shin ◽

Kyu-Jeong Choi ◽

Soon-Gil Yoon

Keyword(s):

Interfacial Layer ◽

Deposition Temperature ◽

Remanent Polarization ◽

Annealing Temperature ◽

Axis Orientation ◽

Interfacial Layers ◽

Si Substrates ◽

Low Temperature Crystallization ◽

Temperature Crystallization ◽

Liquid Delivery

Ferroelectric SrBi2Ta2O9 (SBT) thin films and Bi2O3 interfacial layers were depositedonto the Pt/Ti/SiO2/Si substrates via liquid-delivery metalorganic chemical vapordeposition. The SBT films with a 5-nm-thick Bi2O3 interfacial layer were well crystallized without c-axis orientation, even at deposition temperature of 540 °C and showed a stronger (115) orientation than those without a Bi2O3 layer with increasing annealing temperature. The remanent polarizations of SBT films with Bi2O3 interfacial layer were significantly improved in comparison with those without Bi2O3 layer. The remanent polarization (2Pr) and coercive field (Ec) of SBT films without and with aBi2O3 interfacial layer annealed at 750 °C were 12 and 21 μC/cm2 and 60 and38 kV/cm, respectively, at an applied voltage of 5 V.

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